CN207651282U - Permanent magnetism bidirectional electromagnet - Google Patents

Permanent magnetism bidirectional electromagnet Download PDF

Info

Publication number
CN207651282U
CN207651282U CN201721487961.5U CN201721487961U CN207651282U CN 207651282 U CN207651282 U CN 207651282U CN 201721487961 U CN201721487961 U CN 201721487961U CN 207651282 U CN207651282 U CN 207651282U
Authority
CN
China
Prior art keywords
armature
excitation coil
fixed
fixed armature
moving armature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201721487961.5U
Other languages
Chinese (zh)
Inventor
陈波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Dongsheng Magnetoelectric Technology Co Ltd
Original Assignee
Dongguan Dongsheng Magnetoelectric Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Dongsheng Magnetoelectric Technology Co Ltd filed Critical Dongguan Dongsheng Magnetoelectric Technology Co Ltd
Priority to CN201721487961.5U priority Critical patent/CN207651282U/en
Application granted granted Critical
Publication of CN207651282U publication Critical patent/CN207651282U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of permanent magnetism bidirectional electromagnets, including fixed armature group, moving armature component and the excitation coil group being embedded in fixed armature group, fixed armature group include left fixed armature and right fixed armature;Moving armature component includes the apical axis being sequentially inserted into left fixed armature and right fixed armature, be fixed on the outside moving armature above apical axis and between left fixed armature and right fixed armature, be fixed on apical axis below and the inside moving armature positioned at left fixed armature and right fixed armature between and be embedded in the permanent magnet in outside moving armature and inside moving armature and being located on outside apical axis;It is respectively provided with working gas gap between outside moving armature and left fixed armature, between outside moving armature and right fixed armature, between inside moving armature and left fixed armature and between inside moving armature and right fixed armature.The utility model can for linear motion stable required push-pull effort and position retaining function are provided, disclosure satisfy that big stroke, big electromagnetic force electromagnet.

Description

Permanent magnetism bidirectional electromagnet
Technical field
The utility model is related to a kind of electromagnet more particularly to a kind of permanent magnetism bidirectional electromagnets.
Background technology
Existing linear motion electromagnet generally uses electrical pure iron as permeability magnetic material, is influenced by power and volume, limits The development of linear motion electromagnet is made, and the armature motion stroke to move along a straight line, because of factors such as leakage fields, is caused more than after certain numerical value Magnetic resistance can be significantly increased, and then make the electromagnetic force meeting very little of electromagnet, and straight limit moves the application of electromagnet.
Utility model content
Against the above deficiency, the purpose of this utility model is to provide a kind of permanent magnetism bidirectional electromagnets, are carried for linear motion For stable required push-pull effort and position retaining function, solve the disadvantage that linear motion electromagnet, disclosure satisfy that big stroke, The electromagnet of big electromagnetic force, and the volume of electromagnet is reduced, it can meet under the premise of weight, volumetric constraint, with full The demand of sufficient electromagnet.
Used technical solution is the utility model in order to achieve the above objectives:
A kind of permanent magnetism bidirectional electromagnet, which is characterized in that including a fixed armature group, a moving armature component and be embedded in An excitation coil group in fixed armature group, wherein the fixed armature group includes the left fixed armature and one being oppositely arranged Right fixed armature;The moving armature component includes the apical axis being sequentially inserted into left fixed armature and right fixed armature, fixation An outside moving armature above apical axis and between left fixed armature and right fixed armature is fixed below apical axis and is located at An inside moving armature between left fixed armature and right fixed armature and be embedded in outside moving armature in the moving armature of inside and ring A permanent magnet outside apical axis;The excitation coil group includes being embedded in left fixed armature and on the left of permanent magnet A left side excitation coil group, be embedded in right fixed armature and the right side excitation coil group on the right side of permanent magnet, should Left side excitation coil group is located on outside apical axis respectively with right side excitation coil group;The outside moving armature and left fixed armature it Between, between outside moving armature and right fixed armature, between inside moving armature and left fixed armature and inside moving armature and right fixation Working gas gap is respectively provided between armature.
As a further improvement of the utility model, in the outside moving armature left side and inside moving armature left side and A left ring shaped movable slot is offered on the left of the permanent magnet, on the outside of this moving armature right edge and inside moving armature right edge and It is equipped with a right ring shaped movable slot positioned at permanent magnet right side opening.
Further include being set in left fixed armature and extending to left ring shaped movable as a further improvement of the utility model, It a left coil frame in slot and is set in right fixed armature and extends to the right bobbin in right ring shaped movable slot, wherein The left side excitation coil group is wound on left coil frame, which is wound on right bobbin.
As a further improvement of the utility model, on the left ring shaped movable slot and right ring shaped movable slot inner wall respectively It is provided with the non magnetic catch of a riveting.
The left side excitation coil group is identical with right side excitation coil group as a further improvement of the utility model, Two kinds of excitation coil groups.
The left side excitation coil group is mainly by a left inside ring-shaped excitation line as a further improvement of the utility model, Circle and the left outside ring-shaped excitation coil composition for being located on left inside ring-shaped excitation coil periphery, the right side excitation coil group are main It is made of a right annular excitation coil and the right outer ring excitation coil for being located on right annular excitation coil periphery.
The permanent magnet is the permanent-magnetic clamp being spliced by 6 blocks of magnetic shoes as a further improvement of the utility model,.
The apical axis one end has positioned at left fixed armature or right fixed rank as a further improvement of the utility model, One spacing block set of iron outer side edges.
The beneficial effects of the utility model are:Identical excitation coil is arranged using in permanent magnet both sides, utilizes excitation The break-make order of coil realizes two kinds of stable states, and stable required push-pull effort and position retaining function are provided for linear motion, Solve the disadvantage that linear motion electromagnet, disclosure satisfy that big stroke, big electromagnetic force electromagnet, and reduce the body of electromagnet Product, can meet under the premise of weight, volumetric constraint, to meet the needs of electromagnet;Meanwhile permanent magnet is used, Power is reduced, avoids working long hours, reduces the demand to the energy.
Above-mentioned is the general introduction of utility model technical solution, below in conjunction with attached drawing and specific implementation mode, to the utility model It is described further.
Description of the drawings
Fig. 1 is the sectional view of the utility model;
Moving armature component is in limit on the left position view when Fig. 2 is no current;
Moving armature component is in limit on the right-right-hand limit position view when Fig. 3 is no current;
Fig. 4 is magnetic line of force schematic diagram when excitation coil group is powered;
Fig. 5 is Distribution of Magnetic Field figure when excitation coil group is powered;
Fig. 6 is magnetic line of force schematic diagram when excitation coil group leads to forward current;
Fig. 7 is Distribution of Magnetic Field when excitation coil group leads to forward current.
Specific implementation mode
Further to illustrate that the utility model is to reach the technological means and effect that predetermined purpose is taken, below in conjunction with Specific embodiment of the present utility model is described in detail in attached drawing and preferred embodiment.
Fig. 1 is please referred to, the utility model embodiment provides a kind of permanent magnetism bidirectional electromagnet, including a fixed armature group 1, one Moving armature component 2 and the excitation coil group 3 being embedded in fixed armature group 1, wherein the fixed armature group 1 includes opposite The left fixed armature 11 being arranged and a right fixed armature 12;The moving armature component 2 includes being sequentially inserted into left fixed armature 11 in right fixed armature 12 an apical axis 21, be fixed on the top of apical axis 21 and positioned at left fixed armature 11 and right fixed armature 12 Between an outside moving armature 22, be fixed on the lower section of apical axis 21 and between left fixed armature 11 and right fixed armature 12 One inside moving armature 23 and it is embedded in the permanent magnetic in outside moving armature 22 and inside moving armature 23 and being located on outside apical axis 21 Body 24, in the present embodiment, apical axis 21 are prepared for nonferromugnetic material;The excitation coil group 3 includes being embedded in a left side admittedly Determine in armature 11 and positioned at a left side excitation coil group 31 in 24 left side of permanent magnet, is embedded in right fixed armature 12 and is located at The one right side excitation coil group 32 on 24 right side of permanent magnet, the left side excitation coil group 31 distinguish ring with right side excitation coil group 32 Outside apical axis 21;Between the outside moving armature 22 and left fixed armature 11, outside moving armature 22 and right fixed armature 12 it Between, be respectively provided with work between inside moving armature 23 and left fixed armature 11 and between inside moving armature 23 and right fixed armature 12 Acting air gap 3;When work, by leading to forward current or reverse current to excitation coil group 3, make moving armature component 2 from a stable state Be transitioned into another stable state, to drive the stretching of apical axis 21 to be acted with withdrawal, and by permanent magnet 24 realize moving armature component 2 with The position retaining function of apical axis 21.
In the present embodiment, in 22 left side of outside moving armature and 23 left side of inside moving armature and positioned at permanent magnetic The left side of body 24 offers a left ring shaped movable slot 221, on the outside of this 22 right edge of moving armature and 23 right edge of inside moving armature and It is equipped with a right ring shaped movable slot 222 positioned at 24 right side opening of permanent magnet.
The present embodiment further includes being set in left fixed armature 11 and extending to the left coil in left ring shaped movable slot 221 It frame 4 and is set in right fixed armature 12 and extends to the right bobbin 5 in right ring shaped movable slot 222.Wherein, the left side Excitation coil group 31 is wound on left coil frame 4, which is wound on right bobbin 5.In the present embodiment, left Bobbin 4 is all made of plastics with right bobbin 5 or nylon material is prepared.
Meanwhile the left ring shaped movable slot 221 with to be respectively arranged with a riveting on right 222 inner wall of ring shaped movable slot non-magnetic Property catch 8.
In the present embodiment, the left side excitation coil group 31 and right side excitation coil group 32 are identical two kinds of excitation lines Circle group.Specifically, the left side excitation coil group 31 mainly by a left inside ring-shaped excitation coil 311 and is located on left inside annular One left outside ring-shaped excitation coil 312 of 311 periphery of excitation coil forms, and the right side excitation coil group 32 is mainly by a right annular Excitation coil 321 and the right outer ring excitation coil 322 for being located on 321 periphery of right annular excitation coil form.
In the present embodiment, the permanent magnet 24 is the permanent-magnetic clamp being spliced by 6 blocks of magnetic shoes, and is radial magnetizing.
In the present embodiment, 21 one end of the apical axis, which has, is located at 12 outer side edges of left fixed armature 11 or right fixed armature A spacing block set 211.
The operation principle of the utility model is:
(1) when 3 no current of excitation coil group the case where
When do not have in excitation coil group 3 electric current by when, moving armature component 2 there are two stablize equilbrium position, one is Moving armature component 2 is located at limit on the left position, the other is moving armature component 2 is located at limit on the right-right-hand limit position.When moving armature component 2 is located at When limit on the left position, the magnetic resistance very little of left magnetic circuit and the magnetic resistance of right magnetic circuit is very big, permanent magnet 24 generate magnetic flux the overwhelming majority By left magnetic circuit, and only very small part is by right magnetic circuit, thus moving armature component 2 by sticking securely in limit on the left position It sets, as shown in Figure 2;When moving armature component 2 is located at limit on the right-right-hand limit position, situation is contrary to the above, and moving armature component 2 is by securely Sticking is in limit on the right-right-hand limit position, as shown in Figure 3.
There is also a unstable equilbrium positions, i.e. moving armature component 2 to be located at the neutral position of stroke for moving armature component 2 It sets, left fixed armature 11 and the suction of right fixed armature 12 suffered by moving armature component 2 are equal in magnitude at this time, and direction is on the contrary, dynamic rank Iron component 2 is in equilibrium state.But this is a kind of unstable balance, as long as air gap has minor change, which will be by It destroys, to return to limit on the left position or limit on the right-right-hand limit position.
So moving armature component 2 actually only exists two equilbrium positions, just because of this, this electromagnet is otherwise known as Bistable electro-magnet, when not having electric current in excitation coil group 3, the electromagnetic force that is provided by permanent magnet 24 is by moving armature component 2 It is pull-in on limit on the left position or limit on the right-right-hand limit position.The moving armature component 2 of bistable electro-magnet on two extreme positions of stroke, Not needing power supply offer energy can keep.
(2) the case where when excitation coil group 3 has an electric current
When to excitation coil group 3 by with DC current, as shown in figure 4, electric current just generates magnetic flux, magnetic along magnetic circuit P3 Road contains the left and right working gas gap of moving armature component 2, the magnetic flux generated in left and right working gas gap due to permanent magnet 24 Therefore the direction (P1, P2) by the magnetic flux in one of working gas gap on the contrary, increased, and pass through another working gas gap Magnetic flux reduces.Since the sectional area of left and right working gas gap is equal, moving armature component 2 is finally along left and right working gas gap The big direction movement of magnetic flux, as shown in Figure 5.
Specifically, the motion process of moving armature component 2 is:
A, by limit on the left position, extreme position moves to the right
When moving armature component 2 is in limit on the left position, as shown in fig. 6, in excitation coil group 3 (just by DC current To electric current), magnetic line of force direction P4 and the permanent magnet 24 which generates in the directions magnetic line of force P5 of left fixed armature 11 on the contrary, It is identical in the magnetic line of force direction P6 of right fixed armature 12 as permanent magnet 24, therefore left magnetic flux reduces, 11 left magnetic of left fixed armature Extremely the suction of moving armature component 2 is reduced;Magnetic flux in right magnetic circuit increases, 12 right pole pair moving armature component 2 of right fixed armature Suction increase.When electric current increases to certain value, the synthesis suction suffered by moving armature component 2 will make moving armature component 2 to the right Movement, as shown in Figure 7.Once moving armature component 2 moves right, the left end of moving armature component 2 and 11 left magnetic pole of left fixed armature Between occur as soon as the air gap, the magnetic resistance of left end starts to increase, and the magnetic resistance of right end starts to reduce.The left end pair of moving armature component 2 The suction of moving armature component 2 is smaller and smaller, and the suction of 12 right pole pair moving armature component 2 of right fixed armature is increasing, moves rank 2 resultant forces moved right of iron component are increasing, and dynamic iron core acceleration moves right, this process is continued until moving armature group 2 right end of part is contacted with 12 magnetic pole of right fixed armature, and motion process terminates, and at this moment moving armature component 2 is inhaled by permanent magnet 24 again It closes, is in stable state.When cutting off the electric current of excitation coil group 3, the position of moving armature component 2 will not change, in holding State.
B, by limit on the right-right-hand limit position, extreme position moves to the left
When moving armature component 2 is in limit on the right-right-hand limit position, the direct current opposite with above-mentioned direction will be passed through in excitation coil group 3 Electric current, the process on the contrary, moving armature component 2 moves downward, are continued until that 2 left end of moving armature component is solid with a left side with the above process Determine the contact of 11 magnetic pole of armature, motion process terminates.When cutting off the electric current of excitation coil group 3, moving armature component 2 is by permanent magnet 24 effect is firm to be pull-in on limit on the left position.
It can be seen from the above, electromagnet is combined by polarized electromagnet with permanent magnet, two extreme positions are realized by permanent magnet Holding function, provide energy by leading to forward current or reverse current to excitation coil group 3, make moving armature component 2 from one A steady-state process is transitioned into another stable state, after handoff procedure, and realizes position retaining function by permanent magnet.
By permanent magnetism bidirectional electromagnet provided in this embodiment, magnetic energy is converted into mechanical energy, can be applied in linear motion, Realize stable push-pull effort.When leading to forward current to excitation coil group 3, moving armature component 2 moves right, drive apical axis 21 to Right straight line stretches out, and provides stable push-pull effort, apical axis 21 is maintained at stretching state after power-off;When logical reversed to excitation coil group 3 When electric current, apical axis 21 is withdrawn, and apical axis 21 is maintained at retracted state when power-off;When excitation coil 3 no power of group, apical axis 21 is maintained at Limit on the left position or limit on the right-right-hand limit position.
The utility model is used arranges identical excitation coil in permanent magnet both sides, utilizes the break-make order of excitation coil It realizes two kinds of stable states, provides stable required push-pull effort and position retaining function for linear motion, solve linear motion The shortcomings that electromagnet, disclosure satisfy that big stroke, big electromagnetic force electromagnet, and reduce the volume of electromagnet, can meet Under the premise of weight, volumetric constraint, to meet the needs of electromagnet;Meanwhile permanent magnet is used, power is reduced, is kept away Exempt to work long hours, reduces the demand to the energy.
The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model Any restrictions, therefore identical as the utility model above-described embodiment or approximate technical characteristic is used, and obtained other structures, It is within the protection scope of the utility model.

Claims (8)

1. a kind of permanent magnetism bidirectional electromagnet, which is characterized in that including a fixed armature group, a moving armature component and be embedded in solid Determine the excitation coil group in armature group, wherein the fixed armature group includes that the left fixed armature being oppositely arranged and one are right Fixed armature;The moving armature component include be sequentially inserted into left fixed armature in right fixed armature an apical axis, be fixed on Above apical axis and the outside moving armature positioned at left fixed armature and right fixed armature between, it is fixed below apical axis and positioned at left An inside moving armature between fixed armature and right fixed armature and it is embedded in that outside moving armature is interior with inside moving armature and ring is set In the permanent magnet outside apical axis;The excitation coil group includes being embedded in left fixed armature and on the left of permanent magnet One left side excitation coil group, the right side excitation coil group for being embedded in right fixed armature and being located on the right side of permanent magnet, the left side Side excitation coil group is located on outside apical axis respectively with right side excitation coil group;Between the outside moving armature and left fixed armature, Between outside moving armature and right fixed armature, between inside moving armature and left fixed armature and inside moving armature fixed is held in the mouth with right Working gas gap is respectively provided between iron.
2. permanent magnetism bidirectional electromagnet according to claim 1, which is characterized in that the outside moving armature left side with it is interior Side moving armature left side and offer a left ring shaped movable slot on the left of the permanent magnet, on the outside of this moving armature right edge with it is interior Side moving armature right edge and positioned at permanent magnet right side opening be equipped with a right ring shaped movable slot.
3. permanent magnetism bidirectional electromagnet according to claim 2, which is characterized in that further include be set in left fixed armature and It the left coil frame that extends in left ring shaped movable slot and is set in right fixed armature and extends in right ring shaped movable slot One right bobbin, wherein the left side excitation coil group is wound on left coil frame, which is wound on right bobbin On.
4. permanent magnetism bidirectional electromagnet according to claim 2, which is characterized in that in the left ring shaped movable slot and right annular The non magnetic catch of a riveting is respectively arranged on loose slot inner wall.
5. permanent magnetism bidirectional electromagnet according to claim 1, which is characterized in that the left side excitation coil group swashs with right side It is identical two kinds of excitation coil groups to encourage coil group.
6. permanent magnetism bidirectional electromagnet according to claim 1 or 5, which is characterized in that the left side excitation coil group is main It is made of a left inside ring-shaped excitation coil and the left outside ring-shaped excitation coil for being located on left inside ring-shaped excitation coil periphery, it should Right side excitation coil group mainly by a right annular excitation coil and is located on a right outer shroud of right annular excitation coil periphery Shape excitation coil forms.
7. permanent magnetism bidirectional electromagnet according to claim 1, which is characterized in that the permanent magnet is to be spelled by 6 blocks of magnetic shoes The permanent-magnetic clamp being connected into.
8. permanent magnetism bidirectional electromagnet according to claim 1, which is characterized in that the apical axis one end, which has, is located at a left side admittedly Determine armature or a spacing block set of right fixed armature outer side edges.
CN201721487961.5U 2017-11-09 2017-11-09 Permanent magnetism bidirectional electromagnet Active CN207651282U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721487961.5U CN207651282U (en) 2017-11-09 2017-11-09 Permanent magnetism bidirectional electromagnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721487961.5U CN207651282U (en) 2017-11-09 2017-11-09 Permanent magnetism bidirectional electromagnet

Publications (1)

Publication Number Publication Date
CN207651282U true CN207651282U (en) 2018-07-24

Family

ID=62888777

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721487961.5U Active CN207651282U (en) 2017-11-09 2017-11-09 Permanent magnetism bidirectional electromagnet

Country Status (1)

Country Link
CN (1) CN207651282U (en)

Similar Documents

Publication Publication Date Title
CN104565497B (en) Solenoid valve
EP1596402A3 (en) Electromagnetic actuator and control
CN104832538B (en) Magnetic circuit decoupled and permanent magnet biased active-passive hybrid axial-radial magnetic bearing
CN106050918A (en) Permanent magnet biased five-degree-of-freedom integrated magnetic suspension supporting system
CN105090245A (en) Asymmetric permanent-magnet bias axial magnetic bearing
CN207651282U (en) Permanent magnetism bidirectional electromagnet
CN103489718A (en) Bi-stable permanent magnet electromagnetic system of contactor
CN108253180A (en) A kind of armature closed type bistable electromagnetic valve and operation method
MX2009013440A (en) Magnetic drive system for a switchgear.
CN203553050U (en) Direct-acting latching magnetic structure
CN206268570U (en) A kind of magnetic valve is with two-way positioning formula permanent-magnet operating mechanism
CN112780792B (en) Self-holding electric control permanent magnet valve
CN107863219A (en) Permanent magnetism bidirectional electromagnet
CN103683790A (en) Permanent magnet straight reciprocating motion device
CN201167064Y (en) Inner magnetic type permanent magnet manipulator
CN108612901A (en) Sealing cone armature twin coil bistable electro magnetic mechanism
CN105840655B (en) A kind of novel permanent magnetic biasing single-degree-of-freedom axial magnetic bearing
CN110111971A (en) The stable two-way Self-retaining electromagnet in position is realized based on spring pressure and magnetic attraction
CN201725698U (en) Permanent magnetic actuator
CN204328158U (en) A kind of permanent magnetism auto-locking type electromagnetic valve
CN208204153U (en) A kind of armature closed type bistable electromagnetic valve
CN202275682U (en) Combined permanent magnet block
CN105931918A (en) Vacuum circuit breaker permanent-magnetic actuator with tunable breaking retentivity
CN103715009B (en) A kind of bistable-state permanent magnet mechanism
JP2017212863A (en) Pole-oriented anisotropic injection molding bond magnet and manufacturing method thereof

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant